Partition Radially Slidable In Internal Member Patents (Class 418/173)
  • Patent number: 9885356
    Abstract: A variable displacement pump includes a housing having a pair of end wall surfaces; an annular outer rotor guide swingably disposed between the pair of end wall surfaces; a cylindrical outer rotor; an inner rotor provided radially inward of the outer rotor and configured to rotate integrally with a drive shaft at a location eccentric relative to the outer rotor; and a plurality of coupling plates coupling the inner rotor and the outer rotor. The outer rotor is rotatably fitted into an outer rotor supporting surface of the outer rotor guide. A space between the inner rotor and the outer rotor is partitioned into a plurality of chambers by the plurality of coupling plates. A concave portion is formed in the outer rotor supporting surface such that the concave portion exists over an entire axial range between the both end surfaces of the outer rotor guide.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: February 6, 2018
    Assignee: MAHLE FILTER SYSTEMS JAPAN CORPORATION
    Inventor: Toru Shinohara
  • Patent number: 9850899
    Abstract: A brushless DC compressor comprising a casing, a brushless DC motor, a compression device, and a driving mechanism. The casing has a left room, a right room adjacent the left room, and a lower room. The brushless DC motor is disposed in the left room, and the compression device is disposed in the right room. The driving mechanism is disposed in the lower room, including a driving gear engaging a rotor of the brushless DC motor, a driven gear engaging a hollow shaft of the compression device and driven by the driving gear; whereby refrigerant flows into a compression space of the compression device, rotating the rotor by the stator and driving the driving gear, the driven gear, then the compression device; then being discharged from a refrigerant discharge hole and an axial groove, to form a brushless DC compressor with stronger torque and greater compression efficiency.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: December 26, 2017
    Inventor: Ching-Ko Chang
  • Patent number: 9799158
    Abstract: A coin processing machine includes a coin support plate having a coin support surface defining a coin path extending from an intake location to a coin removal station. Depressions formed in the coin path reduce the likelihood of coins, particularly wet coins, from adhering to and stopping along the coin path.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: October 24, 2017
    Assignee: GCCM, LLC
    Inventor: Gregory F. String
  • Patent number: 9771937
    Abstract: A spiral compressor may include a stationary first spiral member and an orbiting second spiral member intermeshing with the first spiral member. The spiral compressor may include a pendulum slide mechanism that may have an inner ring and a stationary outer ring connected to the inner ring via a plurality of pendulums. The pendulum slide mechanism may include an eccentric member disposed on a radial inside of the inner ring with respect to a central access of the inner ring. The inner ring on an inner circumferential side may be drivingly connected to the eccentric member and on an outer circumferential side may be rigidly connected to the second spiral member. The second spiral member may transmit an orbiting motion in relation to the first spiral member via the pendulum slide mechanism when the eccentric member is driven.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: September 26, 2017
    Assignee: Mahle International GmbH
    Inventors: Steve Beez, Marius Dusik, Jochen Eggler, Alfred Elsaesser, Sebastian Ewert, Achim Gommel, Karl-Heinz Hanslik, Ian Jago, Volker Kirschner, Ottokar Kunberger, Ian Reynolds, Thomas Schmidt, Sascha Senjic, Hans C. Uibeleisen, Cihan Yilmaz
  • Patent number: 9429149
    Abstract: A positive displacement pump and methods of making a positive displacement pump having a component, the component having a density ranging from more than 0 to 3 g/cm3, a glass transition temperature (Tg) greater than or equal to 150° C., and a yield strength retention greater than 90% after soaking in engine oil for 7 days at 150° C.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 30, 2016
    Assignee: SABIC Global Technologies B.V.
    Inventor: Peter Haug
  • Patent number: 9217432
    Abstract: A pendulum-slide pump may include a rotatingly mounted inner rotor connected via at least one pendulum with an outer rotor. The inner rotor may define a plurality of radial grooves configured to receive the pendulum. The grooves may have two groove walls that continues via a rounded region into a shared groove base. The rounded region may have variable groove radii and continue with at least a reduced curvature jump into the groove base or the groove walls. The groove radii may be greated in the translation to the groove walls and to the groove base than therbetween.
    Type: Grant
    Filed: March 20, 2013
    Date of Patent: December 22, 2015
    Assignee: Mahle International GmbH
    Inventors: Andre Maeder, Eike Stitterich
  • Patent number: 9163630
    Abstract: An electric vane pump includes a first cover plate having a substantially planar first pump surface and a second cover plate coupled to the first cover plate defining a substantially planar second pump surface spaced apart from and extending substantially parallel to the first pump surface. A plurality of permanent magnets are fixed to a rotor. A plurality of radially moveable vanes are fixed for rotation with the rotor. Each vane is positioned between the first and second pump surfaces and has a first end slidably engaging the center vane support. An electric motor stator is positioned between the first and second cover plates and circumscribes the rotor. A resilient member biases each of the vanes into engagement with the center vane support.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: October 20, 2015
    Assignee: Magna Powertrain Inc.
    Inventor: Gil Hadar
  • Patent number: 8905738
    Abstract: An example revolving vane expander includes a cylinder. A rotor is housed within the cylinder to establish a working chamber between the cylinder and the rotor. The rotor is eccentrically mounted relative to the cylinder. A vane is secured to the cylinder or the rotor. The vane is slidably receivable within a slot established in the other of the cylinder or the rotor. The vane is configured to link rotational movement of the cylinder and the rotor.
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: December 9, 2014
    Assignee: Nanyang Technological University
    Inventors: Alison Subiantoro, Ken Shaun Yap, Kim Tiow Ooi
  • Patent number: 8905737
    Abstract: A revolving vane compressor comprising: a cylinder having a cylinder longitudinal axis of rotation, a rotor mounted within the cylinder and having a rotor longitudinal axis of rotation, the rotor longitudinal axis and the cylinder longitudinal axis being spaced from each other for relative movement between the rotor and the cylinder; a vane operatively engaged in a slot for causing the cylinder and the rotor to rotate together, the vane being mounted in the slot with a two degree-of-freedom motion relative to the slot for enabling the rotor and the cylinder to rotate with each other.
    Type: Grant
    Filed: February 18, 2008
    Date of Patent: December 9, 2014
    Assignee: Nanyang Technological Univerity
    Inventors: Kim Tiow Ooi, Yong Liang Teh
  • Patent number: 8858206
    Abstract: A pendulum-slide cell pump may include a rotationally mounted inner rotor connected via pendulum-slides with an outer rotor and wherein the outer rotor may be configured to transfer rotational movement of the outer rotor to the inner rotor via the pendulum-slides.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: October 14, 2014
    Assignee: Mahle International GmbH
    Inventors: Christian Richter, Mark Tepler
  • Patent number: 8839620
    Abstract: A sliding vane rotary expander is used in a waste heat recovery system for a power plant. One example rotary expander has multiple stages with the vane assemblies disposed in bearing supported rings. Another example rotary expander has multiple stages with the vane assemblies disposed in an elliptical cavity. A balance valve equalizes the flow within the stages. Single stage rotary expanders may also be used.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: September 23, 2014
    Assignee: AVL Powertrain Engineering, Inc.
    Inventors: Ho Teng, Gerhard Regner
  • Patent number: 8801401
    Abstract: An electrically powered pump includes a housing having a plurality of coils disposed in a circumferential direction of the housing, and an outer rotor rotatably disposed on an inner circumferential side of the housing and having a plurality of permanent magnets. The pump further includes an inner rotor disposed on an inner circumferential side of the outer rotor so as to be rotatable about a rotation axis eccentric relative to a central axis of the outer rotor. The inner rotor has a plurality of slots extending in a radial direction of the inner rotor, and a plurality of connection plates each having an outer radial end portion pivotably supported on an inner circumferential portion of the outer rotor and an inner radial end portion slidably received in the respective slots. The connection plates divide a space formed between the outer and inner rotors into a plurality of chambers.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: August 12, 2014
    Assignee: Mahle Filter Systems Japan Corporation
    Inventor: Takahisa Yamashita
  • Patent number: 8794255
    Abstract: The subject invention described herein is directed to an improved fluid powered system for dispensing a selectively variable proportion of additives into a primary fluid supply line such as is commonly encountered in the firefight industry where it is desirable to proportion foam concentrates into a water line. The subject invention features a water driven motor that is integral to a variable displacement additive pump. A proportioning adjustment allows the solution % to be adjusted. Once set, the additive percent varies in direct proportion to the water flow rate in order to maintain a nearly constant solution percentage over a broad flow range.
    Type: Grant
    Filed: August 18, 2012
    Date of Patent: August 5, 2014
    Inventor: Dennis Wayne Crabtree
  • Patent number: 8790099
    Abstract: A rotary compressor includes a casing (1), a cylinder block (2), a rotor (3), a sliding plate (4), and a discharge valve (7). A suction port (6) and a discharge port (8) are provided on the casing (1). A rotating center axis of the cylinder block (2) deflects from a rotating center axis of the rotor (3), so that an outer circumference surface of the rotor (3) is inscribed with an inner circumference surface of the cylinder block (2). A head portion of the sliding plate (4) is embedded in a cylindrical body of the cylinder block (2), and a main body of the sliding plate (4) extends into a sliding plate slot of the rotor (3). The discharge valve (7) is provided on the outer circumference of the rotor (3) in front of a rotating direction of the sliding plate (4). A cylinder block inlet (12) is provided on the cylinder block (2) in rear of the rotating direction of the sliding plate (4).
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: July 29, 2014
    Assignee: Dafeng Fengtai Fluid Machinery Technology Co., Ltd.
    Inventors: Zongchang Qu, Xiaodong Hou
  • Patent number: 8740593
    Abstract: Vane pump mechanical losses are reduced by removing vane friction losses and replacing them with lower magnitude journal bearing fluid film viscous drag losses. A freely rotating cam ring is supported by a journal bearing. A relatively low sliding velocity is imposed between the cam ring and the vanes. This permits the use of less expensive and less brittle materials in the pump by allowing the pump to operate at much higher speeds without concern for exceeding vane tip velocity limits.
    Type: Grant
    Filed: February 16, 2009
    Date of Patent: June 3, 2014
    Assignee: Eaton Industrial Corporation
    Inventors: Martin A. Clements, Lowell D. Hansen
  • Patent number: 8636488
    Abstract: A hydraulic motor or pump (2) that generates a relatively high torque, and further allows an unprecedented high specific displacement that makes the motor suitable yaw motor for large wind turbines of horizontal axis wind turbines or wheel yaw motor on Heavy Carriers. The characteristic by the hydraulic motor or pump (2) is that if the number of barriers in the annular cavity (12) of engine or pump is n then the number of radial displaceable sliders (20) will be larger than (n+1).
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: January 28, 2014
    Assignee: Liftra ApS
    Inventor: Per E. Fenger
  • Patent number: 8206140
    Abstract: An exemplary revolving vane compressor includes a cylinder having a discharge port in and through the cylinder. A rotor housed within the cylinder is eccentrically mounted relative to the cylinder. A vane is mounted in a slot in the rotor. The vane is for sliding movement relative to the rotor. The vane is securely connected to the cylinder to force the cylinder to rotate with the rotor. A pressure shell surrounds the cylinder and the rotor. Each discharge port is for discharging fluid into an enclosed volume of the pressure shell. The cylinder is held within the enclosed volume.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: June 26, 2012
    Assignee: Nanyang Technological University
    Inventors: Kim Tiow Ooi, Yong Liang Teh
  • Publication number: 20110064598
    Abstract: An oil supply groove 12 in communication with a pump room 2A is formed above a bearing 2B of a housing 2, and an open air groove 14 in communication with an atmospheric air is formed at a position rotated around the bearing 2B by 90° from the oil supply groove. In a shank 3B of a rotor 3, a branch passage 11a branching from an oil passage 11 formed in its axial direction to the diametrical direction of the shank and an open air passage 13 formed in the direction perpendicular to the branch passage are formed. The branch passage and the oil supply groove communicate with each other while the open air passage and the open air groove are arranged to also communicate with each other. When the oil passage and the oil supply groove communicate with each other as the rotor stops, atmospheric air flowing in from the open air passage eliminates a negative pressure in the pump room to prevent the lubricating oil from flowing into the pump room in large quantities.
    Type: Application
    Filed: October 5, 2010
    Publication date: March 17, 2011
    Inventors: Yoshinobu Kishi, Kikuji Hayashida, Kiyotaka Ohtahara
  • Publication number: 20100310400
    Abstract: A rotary compressor includes a casing (1), a cylinder block (2), a rotor (3), a sliding plate (4), and a discharge valve (7). A suction port (6) and a discharge port (8) are provided on the casing (1). A rotating center axis of the cylinder block (2) deflects from a rotating center axis of the rotor (3), so that an outer circumference surface of the rotor (3) is inscribed with an inner circumference surface of the cylinder block (2). A head portion of the sliding plate (4) is embedded in a cylindrical body of the cylinder block (2), and a main body of the sliding plate (4) extends into a sliding plate slot of the rotor (3). The discharge valve (7) is provided on the outer circumference of the rotor (3) in front of a rotating direction of the sliding plate (4). A cylinder block inlet (12) is provided on the cylinder block (2) in rear of the rotating direction of the sliding plate (4).
    Type: Application
    Filed: January 29, 2008
    Publication date: December 9, 2010
    Applicant: Dafeng Fengtai Fluid Machinery Technology Co., Ltd
    Inventor: XIAODONG HOU
  • Publication number: 20100310401
    Abstract: A revolving vane compressor comprising: a cylinder having a cylinder longitudinal axis of rotation, a rotor mounted within the cylinder and having a rotor longitudinal axis of rotation, the rotor longitudinal axis and the cylinder longitudinal axis being spaced from each other for relative movement between the rotor and the cylinder; a vane operatively engaged in a slot for causing the cylinder and the rotor to rotate together, the vane being mounted in the slot with a two degree-of-freedom motion relative to the slot for enabling the rotor and the cylinder to rotate with each other.
    Type: Application
    Filed: February 18, 2008
    Publication date: December 9, 2010
    Inventors: Kim Tiow Ooi, Yong Liang Teh
  • Patent number: 7540729
    Abstract: The disclosure relates to a vane cell pump having an inner rotor (12) and a plurality of vanes (18) which are secured in a pivotable manner to the external rotor (28) and which are displacably mounted in a radial manner in the inner rotor, essentially in radial slots (16). The external rotor is formed on guide blocks (22). Said guide blocks are guided, with the axial front sides thereof, on the guiding path and are guided along the internal circumferential surface of a stator (26). The guiding path is arranged in a guide ring (36).
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: June 2, 2009
    Assignee: Joma-Hydromechanic GmbH
    Inventor: Willi Schneider
  • Patent number: 7491043
    Abstract: Vane pump (10) mechanical losses are reduced by removing vane friction losses and replacing them with lower magnitude journal bearing fluid film viscous drag losses. A freely rotating cam ring (70) is supported by a journal bearing (80). A relatively low sliding velocity is imposed between the cam ring and the vanes (26). This permits the use of less expensive and less brittle materials in the pump by allowing the pump to operate at much higher speeds without concern for exceeding vane tip velocity limits.
    Type: Grant
    Filed: August 4, 2006
    Date of Patent: February 17, 2009
    Assignee: Argo-Tech Corporation
    Inventors: Martin A. Clements, Lowell D. Hansen
  • Patent number: 7484944
    Abstract: A rotary vane pump is provided that provides an improved fluid replenishment and pressure relief system within a rotary vane pump system. A system, containing a rotary vane pump containing at least one relief cut between the housing and the rotor, functions to relieve fluid pressure normally found between the housing and the rotor. The fluid leaks from areas such as the rotational clearance required between the rotor and an inner wall of the housing. The system includes a reservoir in fluid communication with the relief cut wherein fluid leaks are then retained within the reservoir. A fluid distribution manifold employing a plurality of check valves, each corresponding to a respective chamber within the rotor, provides a controlled fluid feed from the reservoir to the rotor thereby balancing the fluidic pressure existing between the radially innermost ends of the vanes and the radially outermost ends of the vanes.
    Type: Grant
    Filed: August 11, 2004
    Date of Patent: February 3, 2009
    Inventor: Thomas E. Kasmer
  • Patent number: 7344367
    Abstract: A rotary compressor having a housing, a rotor positioned within the housing defining a compression chamber, the rotor rotatable about an axis of rotation, a discharge port in the rotor in fluid communication with the compression chamber, and a valve assembly mounted to the rotor to regulate the pressure of the fluid within the compression chamber. In one embodiment, the valve assembly is canted or obliquely aligned with respect to the axis of rotation of the rotor and a radial axis perpendicular to and intersecting the axis of rotation. Aligning the valve assembly in this way allows the displacement of the valve head of the valve assembly to be substantially collinear with forces acting on the valve head.
    Type: Grant
    Filed: January 10, 2006
    Date of Patent: March 18, 2008
    Assignee: Tecumseh Products Company
    Inventor: Dan M. Manole
  • Patent number: 7247008
    Abstract: A bearing assembly is provided for a fuel delivery system that includes a pump (10) having a housing that rotatably receives a rotor (20) carrying vanes (26) thereon, a cam ring (70) received between the housing and rotor (20), and a support member of yoke (50) encompassing the cam ring (70) to selectively vary fuel flow. The bearing assembly (80) is a journal bearing between the yoke (50) and the cam ring (70) and includes an annular surface having a central opening therethrough. The annular surface includes a first, high pressure pad (102) and a second, low pressure pad (104) substantially diametrically opposite the first pad and separated by first and second lands (106, 108). The circumferential extent of the first pad (102) is at least as great as an inner diameter of the cam ring (70). Circumferential ends of the second pad (104) are wider than circumferential ends of the first pad.
    Type: Grant
    Filed: July 21, 2003
    Date of Patent: July 24, 2007
    Assignee: Argo-Tech Corporation
    Inventors: Martin A. Clements, Robert Nyzen
  • Patent number: 7217110
    Abstract: A rotary compressor for compressing a working fluid includes a housing having an oil sump. A stationary shaft extends into the housing and includes a longitudinal passage. The longitudinal passage has an oil inlet in fluid communication with the oil sump. A working fluid inlet receives the working fluid. A motor has a stator and a rotor. The rotor is rotatably mounted on the shaft within the housing and includes an internal compression chamber in fluid communication with the longitudinal passage. A roller is rotatably mounted on the shaft and eccentrically disposed within the compression chamber. The roller is coupled to the rotor such that rotation of the rotor rotates the roller and thereby compresses the working fluid within the compression chamber.
    Type: Grant
    Filed: March 9, 2004
    Date of Patent: May 15, 2007
    Assignee: Tecumseh Products Company
    Inventor: Nelik I. Dreiman
  • Patent number: 7134856
    Abstract: The invention relates to a compressed air motor comprising a housing and a rotor rotatably mounted therein, the rotor being provided with substantially radial slots and plate-like vanes being mounted in the slots so as to be radially displaceable by the centrifugal force, and variable, all-round air chambers being formed between the housing and the outside of the rotor. The vanes are surrounded on the outside by a rotatable sleeve which is provided with at least one passage for the compressed air.
    Type: Grant
    Filed: February 4, 2003
    Date of Patent: November 14, 2006
    Assignee: KMB Feinmechanik AG
    Inventors: Thomas Müller, Daniel Müller, Kurt Müller
  • Patent number: 7108493
    Abstract: Vane pump (10) mechanical losses are reduced by removing vane friction losses and replacing them with lower magnitude journal bearing fluid film viscous drag losses. A freely rotating cam ring (70) is supported by a journal bearing (80). A relatively low sliding velocity is imposed between the cam ring and the vanes (26). This permits the use of less expensive and less brittle materials in the pump by allowing the pump to operate at much higher speeds without concern for exceeding vane tip velocity limits.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: September 19, 2006
    Assignee: Argo-Tech Corporation
    Inventors: Martin A. Clements, Lowell D. Hansen
  • Patent number: 6874996
    Abstract: The hybrid compressor apparatus is composed of a compressor in which fluid is compressed by varying a volumetric capacity of a compression space provided between a first compression member and a second compression member, which are movable independently of each other, according to rotation of the first compression member relative to the second compression member, a motor rotatable upon receipt of power of an external electric source, and a driven member rotatably driven by motive force transmitted from an external driving source. The first compression member is connected with the driven member and the second compressor is connected with the motor. If maximum discharge amount is required for the compressor, the motor is driven separately by a control device when the driven member drives the first compression member so that the second compression member is rotated in a direction opposite to that of the first compression member.
    Type: Grant
    Filed: January 13, 2003
    Date of Patent: April 5, 2005
    Assignee: Denso Corporation
    Inventor: Shigeki Iwanami
  • Patent number: 6666671
    Abstract: A rotary pump for pumping compressible fluid comprising an eccentrically mounted rotor 20 and a stator 10. The stator 10 comprises a stator inner liner 80 that is free to rotate, driven directly or in response to rotation of the rotor 20 such that the relative velocity between the outer surface of the rotor 20 and the inner surface of the stator 10 is reduced. The vanes 40 are held at each end by sockets 90, 95 in the rotor 20 and stator 10. The vane 40 and socket 90, 95 coupling provides fluid sealing without liquid lubricant. Opposing solid lubricant and hard surfaces are used on contact surfaces between the elements.
    Type: Grant
    Filed: January 31, 2002
    Date of Patent: December 23, 2003
    Assignee: IC Innovations
    Inventors: Andrew Vernon Olver, Giulio Francesco Contaldi
  • Patent number: 6584963
    Abstract: A throttle loss recovery turbine and supercharger device (10) comprises a housing (12) having a movable intake port (36) and a separately movable exhaust port (38). An outer drum is rotatably placed within the housing. An inner drum (24) is rotatably disposed within the housing, and within an inside diameter of the outer drum (18). The inner drum has an axis of rotation (30) eccentric to an axis of rotation of the outer drum, defining a variable volume annular space (26) therebetween. The inner and outer drum are configured to rotate within the housing at a 1:1 ratio with one another, and the intake and exhaust ports are each in air flow communication with some portion of the annular space. A number of vanes (20) are each interposed radially between the inner and outer drums. Each vane is pivotably attached at one end (22) to the outer drum, and is attached at an opposite end to the inner drum. At least one drum is coupled to an engine crankshaft.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: July 1, 2003
    Assignee: Honeywell International Inc.
    Inventor: Steven Don Arnold
  • Patent number: 6527525
    Abstract: A variable pump or motor is providing including a housing with inlet and outlet ports and a vaned rotor. Spool ends are provided at either end of the rotor thereby enhancing the effective sealing of the pump and its overall efficiency. Piston actuators are also described. A sealing means is provided in conjunction with the use of a flexible belt wherein volumetric efficiency is substantially improved.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: March 4, 2003
    Inventor: Thomas E. Kasmer
  • Patent number: 6152718
    Abstract: A positive-displacement piston mechanism includes a small rotor integrated with a main axis and biased against a cylindrical large rotor for holding a bearing-housing. Slant sliding slots are formed at facing places in equally divided space between the large rotor and the small rotor. Vanes having an angle are fitted into the slots as if they were bridges, and an inlet and an outlet are provided on side-housings.
    Type: Grant
    Filed: January 8, 1998
    Date of Patent: November 28, 2000
    Assignee: Takeshi Sato
    Inventor: Hiroshi Kobayashi, deceased
  • Patent number: 6135742
    Abstract: The present invention relates to an eccentric-type vane pump and, in particular, to an eccentric-type vane pump being capable of generating minimum heat and noise due to frictional force produced from rotation of the vane pump. The vane pump comprises a rotor connected to a rotor shaft having vanes slidably received in vane grooves and recessed within a space in the periphery of the rotor for moving radially by rotation of the rotor. A cylinder ring is positioned eccentrically around the rotor and is rotated by the frictional force produced from abutting the front end of the vanes. A pump chamber is formed between the rotor and the cylinder ring. A cylinder body is provided having a bearing between the outer surface of the cylinder ring and the cylinder body. A front body is connected to a first end of the cylinder body. One end of a rotor shaft is supported on a recess formed on one side of the front body.
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: October 24, 2000
    Inventor: Bong-Hyun Cho
  • Patent number: 6120271
    Abstract: A vane slot assembly and installation method for a rotary vane pumping machine including a rotor with a rotor axis of rotation. The rotor has a vane slot with two opposing, azimuthally separated, slot side walls. The rotor has a primary slot gear rack disposed radially along a first slot side wall. A radially reciprocating vane is movably disposed between the slot side walls. The vane has side walls facing the slot side walls, and has a primary vane gear rack disposed radially along a first vane side wall facing the first slot side wall. A plurality of vane slot rollers are movably disposed between the first slot side wall and the first vane side wall. The rollers have axes of rotation substantially parallel to the rotor axis and include an aligned roller having a primary roller gear. The primary roller gear engages the primary vane gear rack and the primary slot gear rack. As a result, friction-reducing roller bearings between the vane and the rotor slot are properly aligned radially.
    Type: Grant
    Filed: November 4, 1998
    Date of Patent: September 19, 2000
    Assignee: Mallen Research Corporation
    Inventor: Brian D. Mallen
  • Patent number: 6022201
    Abstract: A variable pump or motor is providing including a housing with inlet and outlet ports and a vaned rotor, the vanes being extensible against a shape controlled freely rotatable flexible band within the housing.
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: February 8, 2000
    Assignee: Kasmer Hydristor Corporation
    Inventor: Thomas E. Kasmer
  • Patent number: 5567139
    Abstract: A two-rotor, sliding vane rotary compressor for compressing fluid containing an inner rotor, an outer rotor, means for rotating said inner rotor and said outer rotor at the same angular velocity, and at least one sliding vane disposed between the inner rotor and said outer rotor. The outer rotor is has an inner surface which is has at least one flat portion. As the inner rotor rotates, the sliding vane contacts the outer rotor.
    Type: Grant
    Filed: June 21, 1995
    Date of Patent: October 22, 1996
    Inventor: Roger C. Weatherston
  • Patent number: 5235945
    Abstract: The power and compressor units of an internal combustion rotary engine system utilize a rotor assembly, concentrically mounted on a stationary distributor core member, for rotation about an axis eccentric to the central axis of a cylindrical cavity that provides the working chamber of the unit. Three vanes are disposed in the body of the rotor assembly for slidable movement in a radial direction, which engage the cylindrical surface disposed eccentrically thereabout so as to define chambers of dynamically increasing and decreasing volume as the rotor assembly operates. The core member functions as a valve, permitting or preventing the flow of air into the compartments defined by the vanes in a sequence that is timed to establish air introduction, compression, combustion (in the power unit) and exhaust phases of the operating cycle. In certain embodiments, the surface that cooperates with the vanes may be provided by a shell that is also mounted for rotation within the engine block.
    Type: Grant
    Filed: December 20, 1991
    Date of Patent: August 17, 1993
    Inventor: George Testea
  • Patent number: 5135372
    Abstract: A rotary fluid machine including a plurality of fluid chambers defined by a housing and a rotor and by a plurality of lobes and seals engaging with the lobes provided on the housing and the rotor with the number of seals and lobes being unequal and fluid passageways provided in each of the plurality of chambers with alternate fluid passageways being connected together.
    Type: Grant
    Filed: July 8, 1991
    Date of Patent: August 4, 1992
    Inventor: Aleksander G. Pipalov
  • Patent number: 5064361
    Abstract: A compressed-air vane motor comprises a rotor which is mounted on anti-friction bearings and has, distributed over the periphery, location slots in which vanes are guided in a radially displaceable manner and whose outer sealing edges bear by centrifugal force against the inner surface of the cylindrical outer shell. To reduce wear and friction, and to achieve a long service life when operating with oil-free compressed air, the outer shell, which is displaced eccentrically relative to the rotor, is rotatably guided in a housing and is driven along by the friction between the vanes and the outer shell, and the cylindrical outer shell is rotatably mounted in the housing by at least one air bearing and to this end is accommodated with little radial clearance in an approximately circular-cylindrical guide bore of the housing. In order to further reduce wear, at least one air pocket is provided and is open toward the outer shell in the housing.
    Type: Grant
    Filed: April 5, 1990
    Date of Patent: November 12, 1991
    Assignee: Schmid u. Wezel
    Inventors: Michael Kristof, Josef Mueller
  • Patent number: 4902209
    Abstract: A multiple or compound work cycle, eccentric rotor, fluid power translation device, featuring adjustable and reversible work output capability, essentially comprising: A symmetric rotor having a plurality of fixed radially extended vanes rotating closely between opposing co-axially adjustable confinement plates. An internal, eccentrically disposed annulus comprised of segmented concentric rings having co-axially protruding edges; said edges engaging circular, matching bearing grooves provided by said opposed confinement plates. The segments comprising each segmented ring being each penetrated by a rotor vane; two or more segments per vane thereby compelling co-rotation of said segments and locating said segments relative segments penetrated by adjacent rotor vanes.
    Type: Grant
    Filed: March 4, 1988
    Date of Patent: February 20, 1990
    Inventor: Howard A. Olson
  • Patent number: 4890990
    Abstract: A rotary engine in which the expansion pressure of a working gas is converted into a mechanical rotary movement consists of an inner engine element with an outer circumferential surface and an outer engine element which surrounds the inner element and has an inner circumferential surface, the two surfaces being disposed closely adjacent and facing each other. Disposed at, for example, the inner surface are three spaced projections, which transmit the expansion pressure of the gas to the inner element, and three expansion chambers between the projections. Four reaction members, which are each movable into the expansion chambers in turn and transmit the gas expansion pressure to the outer element, are mounted at the circumferential surface of the outer element. The two circumferential surfaces have the form of complementary annular surfaces, wherein in cross-section the inner surface has the shape of a concave, parabola-like curve and the outer surface the shape of a convex, parabola-like curve.
    Type: Grant
    Filed: April 14, 1988
    Date of Patent: January 2, 1990
    Inventor: Michael L. Zettner
  • Patent number: 4773836
    Abstract: A rotary vane pump comprising an inner rotor and an outer rotor which rotate together about eccentric axes. A pair of support shafts is attached to the inner rotor and are rotatably mounted for rotation of the inner rotor. At least one of the support shafts is hollow and serves as a fluid conduit. The outer rotor and the inner rotor are provided with ports at the ends thereof for flow of fluid into the inner rotor. The relative dimensions of the rotors are such that a chamber is formed between the rotors. A vane is attached to the outer rotor and slidably extends into a slot in the inner rotor. The vane divides the chamber into intake and outlet portions. Fluid flows from the inner rotor into the chamber between the rotors, and fluid flows from the chamber into a fluid conduit formed by the hollow support shaft. The rotary vane pump is adapted to pump fluids, such as gases and liquids, separately or in combination.
    Type: Grant
    Filed: June 15, 1987
    Date of Patent: September 27, 1988
    Assignee: J. C. Moore Research Inc.
    Inventor: Jesse C. Moore
  • Patent number: 4764095
    Abstract: An apparatus, particularly for compressing and conveying fluids, comprising a rotor (1) and a thin-walled rotary sleeve (7) which is rotatably arranged eccentrically with respect to the axis (M1) of the rotor and which is in surface contact with the surface of the rotor throughout a predetermined angular range (.phi.). At least one separator slide (12) is provided between working chambers (S, D) the volumes of which vary when the rotary sleeve rotates. The apparatus is constructed such that the fluid throughput and the speed of rotation can be increased compared to conventional devices, so that a device of given capacity may have smaller dimensions and a lower weight.
    Type: Grant
    Filed: December 4, 1986
    Date of Patent: August 16, 1988
    Inventor: Kurt G. Fickelscher
  • Patent number: 4673343
    Abstract: A rotary vane pump comprising an inner rotor and an outer rotor which rotate together about eccentric axes. A pair of support shafts are attached to the inner rotor and are rotatably mounted for rotation of the inner rotor. At least one of the support shafts is hollow and serves as a fluid conduit. The outer rotor is rotatably mounted upon the support shafts. The outer rotor and the inner rotor are provided with ports at the ends thereof for flow of fluid into the inner rotor. The relative dimensions of the rotors is such that a chamber is formed between the rotors. A vane is attached to the outer rotor and slidably extends into a slot in the inner rotor. The vane divides the chamber into intake and outlet portions. Fluid flows from the inner rotor into the chamber between the rotors, and fluid flows from the chamber into fluid conduit formed by the hollow support shaft.
    Type: Grant
    Filed: January 27, 1986
    Date of Patent: June 16, 1987
    Inventor: Jesse C. Moore
  • Patent number: 4657493
    Abstract: An apparatus provided in a rotary compressor comprising an air-bearing room (40) defined between the inner periphery of the center housing (22) and the outer periphery of the rotary sleeve (30) to have an air-bearing effect for floatingly supporting the rotary sleeve rotating with a plurality of vanes. The air-bearing room (40) is supplied with air through an inlet passage (45) and/or a connecting passage (49), if necessary. A buffer chamber (47, 57) is formed in the wall of the center housing (22) and opened to the inner periphery of the center housing (22) through tiny bores (48, 58). The rotary sleeve (30) is pushed back to the center by a buffering action of air in the buffer chamber whenever it is put aside toward the center housing (22), thereby being prevented against a direct contact with the inner periphery of the center housing (22).
    Type: Grant
    Filed: January 11, 1985
    Date of Patent: April 14, 1987
    Assignee: Nippon Piston Ring Co., Ltd.
    Inventors: Hiroshi Sakamaki, Yukio Horikoshi, Kikuji Yanagihashi
  • Patent number: 4648818
    Abstract: Apparatus in a vane type rotary compressor for floatingly supporting a rotary sleeve which is mounted in a center housing for rotation with a plurality of vanes movable in a rotor, the apparatus comprising an air-bearing room defined between the inner periphery of the center housing and the outer periphery of the rotary sleeve and supplied with the maximum-pressure or discharge-pressure air through an air-supply passage extending from the discharge chamber or compression working space under the maximum pressure. The air-supply passage is formed with an accumulator for reducing the pulsations and/or temperature of the supplied air. The accumulator is composed of either or both of a relatively large hollow in the thickened wall of the center housing and a plurality of fine bores and alternative grooves forming a S-shaped hole in the suction side wall.
    Type: Grant
    Filed: September 20, 1985
    Date of Patent: March 10, 1987
    Assignee: Nippon Piston Ring Co., Ltd.
    Inventors: Hiroshi Sakamaki, Susumu Sugishita, Yukio Horikoshi, Kikuji Yanagihashi
  • Patent number: 4648819
    Abstract: A rotary compressor provided with a rotary sleeve mounted in a center housing for rotation with a plurality of vanes radially slidably fitted in a rotor which is eccentrically disposed in the rotary sleeve, and an air bearing room defined between the outer periphery of the rotary sleeve and the inner periphery of the center housing and internally connected to compressed air in the compressor, characterized in that a multiplicity of air-accumulating grooves are formed in either or both of the outer periphery of the rotary sleeve and the inner periphery of the center housing to increase the bearing capacity of the air-bearing room and prevent the rotary sleeve from directly contacting the inner periphery of the center housing even if the high-pressure in the rotary sleeve pushes aside the rotary sleeve.
    Type: Grant
    Filed: March 26, 1986
    Date of Patent: March 10, 1987
    Assignee: Nippon Piston Ring Co., Ltd.
    Inventors: Hiroshi Sakamaki, Susumu Sugishita, Yukio Horikoshi
  • Patent number: 4620837
    Abstract: A vane-type rotary compressor has a rotary sleeve (30) mounted in a center housing (22) for rotation with a plurality of vanes (16) movable in a rotor (10). The rotary sleeve is floatingly supported in an air-bearing room (40) defined between the outer periphery of the center housing. The air-bearing room has a supply of air through an inlet port (71) internally connected to a discharge chamber (41) or a compression working space (43) under the maximum pressure. At least a pocket (73, 74) is provided in the inner periphery of the center housing to increase the bearing performance of the air-bearing room and protect the rotary sleeve and the center housing against scuffing and seizure troubles therebetween.
    Type: Grant
    Filed: October 17, 1984
    Date of Patent: November 4, 1986
    Assignee: Nippon Piston Ring Co., Ltd.
    Inventors: Hiroshi Sakamaki, Yukio Horikoshi, Kikuji Yanagihashi
  • Patent number: 4616985
    Abstract: A vane type rotary compressor comprising a housing having a cylindrical inner wall surface, a rotatable sleeve disposed in the housing for rotation about its own longitudinal axis, a rotor disposed in the sleeve for rotation about its own longitudinal axis, which is offset from the longitudinal axis of the sleeve, and a plurality of vanes carried by the rotor to extend in radial directions and maintained in contact with the inner surface of the sleeve to divide the interior of the sleeve into a plurality of working chambers. The rotatable sleeve is made of an Si-Al type alloy containing 12 to 25% by weight of Si. The sleeve is age hardened and provided with an anodic oxidation coating. A further coating of wear resistant resin may be provided on the outer surface of the sleeve.
    Type: Grant
    Filed: March 30, 1984
    Date of Patent: October 14, 1986
    Assignee: Mazda Motor Corporation
    Inventors: Toshihiko Hattori, Yuji Akagi, Hideo Kohara